Grade 12Algebra
If the sum of the coefficients in the expansion of (1+2x)n is 6561, the greatest term in expansion for x=1/2 is? The answer is 5th term. But how?Please explain.
If the sum of the coefficients in the expansion of (1+2x)n is 6561, the greatest term in expansion for x=1/2 is?
The answer is 5th term. But how?
Please explain.
